28/03/2020 Ideal Gases and Thermal Expansion(Senior Class Physics Study by Topics) 28/03/2020 0Comments by Gate Academy Welcome to your Ideal Gases and Thermal Expansion(Senior Class Physics Study by Topics) NAME EMAIL PHONE NUMBER 1. In a nitrogen gas has occupied a volume of 500ml at a pressure of 0.971atm. What volume will the gas fill at a pressure of 1.50 atm, assuming the temperature remains constant? 442mL 342mL 424mL 324mL 2. A sample of gas occupies 2.5 liters of space. How many moles of gas are there if its pressure is 1.2 atm and temperature is 25C? ___ mol (round to the nearest hundreth). 0.2 12.0 20.0 0.12 3. A Good example of Charles' law is when a piece of metal expands in the heat. False True 4. The Kelvin temperature scale has the same size degree as the_____ scale and its zero is _____ degrees lower. Fahrenheit ... 459 Fahrenheit ... 273 Celsius ... 459 Celsius ... 273 5. Which of the following is NOT a method of transporting heat energy from one place to another Conduction Radiation Condensation 6. In a closed container at 1.0 atmosphere, the temperature of a sample of gas is raised from 300 K to 400 K. What will be the final pressure of the gas? 0.010 atm 0 atm 1.3 atm 100 atm 7. According to Charles Law, if you have a balloon inside a car at noon during a hot summer day, the balloon molecules inside will increase in pressure. True False 8. When a supply of hydrogen gas is held in a 4-liter container at 320 K it exerts a pressure of 800 torrs. The supply is moved to a 2-liter container, and cooled to 160 K. What is the new pressure of the confined gas? 200 torr 800 torr 400 torr 1600 torr 9. Neon gas has a volume of 2,000 ml with a pressure of 1.8atm however, the pressure decreased to 1.3 atm, what is now the volume of the neon gas? 3,759mL 2, 795mL 3,795mL 2,759mL 10. At constant pressure and 25°C, a sample of gas occupies 4.5 liters. At what temperature will the gas occupy 9.0 liters? 50°C 50K 596K 596°C 11. Avogadro suggested that each liter of gas under identical conditions has the same Number of moles Density Mass Number of molecules 12. One of these is NOT a factor that can affect the rate of evaporation Temperature Air dryness Pressure Volume of liquid 13. The choice of thermometric liquids in a thermometer should depend on the following properties except: Must be opaque Must have a high specific heat capacity Must have a high coefficient of expansion Must have a low melting point 14. What is the force that binds atoms together? Magnetic Gravitational Electric Nuclear 15. A small sample of helium gas occupies 6 mL at a temperature of 250 K. At what temperature does the volume expand to 9 mL? 375K 2250K 500K 125K 16. What volume of space would 1 mole of gas occupy if it is at a temperature of 0C and pressure of 1 atm? ____ liters (round to the nearest tenth) 22.4 24.4 14,2 12.2 17. You drove continuously from Laguna to Manila, and you observed that the pressure in your tires increased. This is because of the increased temperature outside the tire caused by friction. False True 18. Two barometers are made with water and oil. The density of oil is 900 kg/m3 and that of water is 1000 kg/m3. If the oil column is 10 m tall, how tall is the water column? 12.0 m 9.0 m 10.0 m 11.1 m 19. If a block of material has a mass of 8 grams and a volume of 4 cubic centimeters, what is its density? 12 grams-cubic centimeters 2 grams per cubic centimeter 4 grams-cubic centimeters 0.5 cubic centimeters per gram 20. The atomic mass of carbon dioxide is 44 atomic mass units. What is the atomic mass of oxygen if each molecule contains one atom of carbon and two of oxygen? 10 12 22 16 21. Organize the following gasses in order of their rates of diffusion, from slowest to fastest oxygen, O2 ammonia, NH3 hydrogen, H2 carbon dioxide, CO2 Oxygen, hydrogen, carbon dioxide, ammonia Carbon dioxide, oxygen, ammonia, hydrogen Hydrogen, ammonia, oxygen, carbon dioxide Hydrogen, oxygen, ammonia, carbon dioxide 22. In which direction in a fluid at rest is the pressure the greatest at a given depth? Horizontal Upward Downward The pressure is the same in all directions 23. The mass of an oxygen molecule is 16 times that of a hydrogen molecule. If the gases are maintained at the same temperature, what is the ratio of the rms speed of an oxygen molecule to that ofa hydrogen molecule? 4 1/4 16 1/16 24. A sample of Argon has a volume of 0.43 mL at 299K. At what temperature in degrees Celsius will it have a volume of 1 mL. 428°C 695°C 422°C 694°C 25. If 1 liter of oxygen combines completely with 2 liters of hydrogen to form water, how many liters of oxygen are required to combine completely with 8 liters of hydrogen 4 2 6 8 1 out of 25 Time is Up! Time's up
